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  1. fenix.tecnico.ulisboa.pt

    Modelling ultra-high frequency x-ray emission in particle in cell codes Miguel Pardal miguel.j.pardal@ist.utl.pt Instituto Superior T ecnico, Lisboa, Portugal October, 2018 Abstract Radiation processes in plasma are extremely relevant for a number of elds ranging from astrophysics to small scale microscopy.
  2. lac913.epfl.ch

    Modeling Ultra-high Frequency Radiation Emission in PIC Codes M. Pardal 1, A. Sainte-Marie 1, A. Reboul-Salze 1, ... xRAY results 0 5000 10000 15000 20000 25000 30000 35000 40000 [p] 8 10 6 10 4 10 100 d I / d ... emitted by particles using trajectory les from particle-in-cell codes such as OSIRIS [7]. ...
  3. Nov 1, 2024Scintillators are at the heart of a wide range of technologies, from x-ray-based computerized tomography and positron emission tomography (1, 2) to advanced detectors in particle physics ().Although these applications span a wide range of energy and length scales, they are all based on the same underlying mechanism of scintillation, in which high-energy radiation triggers the emission of ...
  4. sciencedirect.com

    In high-intensity (> 10 21 W cm − 2) laser-matter interactions gamma-ray photon emission by the electrons can strongly affect the electronʼs dynamics and copious numbers of electron-positron pairs can be produced by the emitted photons.We show how these processes can be included in simulations by coupling a Monte Carlo algorithm describing the emission to a particle-in-cell code.
    Author:C. P. Ridgers, J. G. Kirk, R. Duclous, T. G. Blackburn, C. S. Brady, K. Bennett, T. D. Arber, A. R. ...Published:2014
  5. ieeexplore.ieee.org

    A method to determine the presence of hard X-ray emission processes from a dense plasma focus (205 J, 22 kV, 6.5 mbar H2) using Ultra High Frequency (UHF) measurements and deep learning techniques is presented. Simultaneously, the electromagnetic UHF radiation emitted from the plasma focus was measured with a Vivaldi UHF antenna, while the hard X-ray emission was measured with a scintillator ...
    Author:Gonzalo Avaria, Jorge Ardila-Rey, Sergio Davis, Luis Orellana, Benjamin Cevallos, Cristian Pavez, Le...Published:2019
  6. ncbi.nlm.nih.gov

    National Center for Biotechnology Information

    https://www.ncbi.nlm.nih.gov › pmc › articles › PMC9032387

    Günter Dittmar, Aalen, Germany) for monitoring the X-ray emission spectra and X-ray emission dose rate H ˙ ′ (0.07) in the soft X-ray photon energy range between 2 and 20 keV. In each experiment, the detectors were aligned parallel to the laser beam scan direction towards the center of the laser-processed area.
  7. Nov 15, 2024The Boomerang nebula is a bright radio and X-ray pulsar wind nebula (PWN) powered by an energetic pulsar, PSR~J2229+6114. It is spatially coincident with one of the brightest ultrahigh-energy (UHE, $\\ge 100$\\,TeV) gamma-ray sources, LHAASO~J2226+6057. While X-ray observations have provided radial profiles for both the intensity and photon index of the nebula, previous theoretical studies ...
  8. iopscience.iop.org

    Using cyclotron radiation emission for ultra-high resolution x-ray spectroscopy. ... we discovered that there was a notable loss in RF efficiency when the frequency grew too high. In a 1 T field, a 2.7 keV electron would emit cyclotron radiation at 27.8 GHz instead of 27.0 GHz. ... Rehr J J and Denlinger J D 2011 X-ray emission spectroscopy of ...
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